Home / 18,147,354.80-27,228,905.40-9,171,906.80

Finding the Fourth Proportional to 18,147,354.80, 27,228,905.40 and 9,171,906.80

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Solution

The fourth proportional to 18,147,354.80, 27,228,905.40 and 9,171,906.80 is: 13,761,839.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,147,354.80 : 27,228,905.40 = 9,171,906.80 : x
  2. Step 2: Convert to fraction form
    18,147,354.80/27,228,905.40 = 9,171,906.80/x
  3. Step 3: Cross multiply
    18,147,354.80x = 27,228,905.40 × 9,171,906.80
  4. Step 4: Simplify right side
    18,147,354.80x = 249,740,982,594,816.72
  5. Step 5: Solve for x
    x = 249,740,982,594,816.72/18,147,354.80
  6. Step 6: Final answer
    x = 13,761,839.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.